Editing Ureteric Stricture Disease (section)

==Answers==
#What are the causes of ureteral stricture disease?
##Stones
##Instrumentation, endoscopic
##Infection (TB)
##Radiation
##Renal ablation injury
##Ischemia
##Idiopathic
##Periureteral fibrosis
#What are the management options for ureteral stricture disease?
##Diversion
##Endoscopic
##Surgical
###Ureteroureterostomy
###Ureteroneocystotomy
###Psoas hitch
###Boari flap
###Renal descensus
###Transureteroureterostomy
###Ileal ureter
###Autotransplant
#What are the contraindications to transureterostomy?
##Absolute: insufficient length of ureter
##Relative: history of stones, upper tract cancer, RPF, radiation, chronic pyelonephritis, any process that affects both ureters
#What investigations are needed before considering transureteroureterostomy?
##VCUG to rule out reflux
#What are the contraindications to ileal ureter substitution?
##Baseline renal insufficiency
##Bladder dysfunction or outlet obstruction
##Inflammatory bowel disease
##Radiation enteritis
#What is the preferred approach (retrograde vs. antegrade) for the endoscopic management of ureteroenteric stricture?
##Antegrade
#What are the risk factors for failure of endourological management of a ureteroenteric anastamostic stricture?
##Left sided stricture
##Stricture > 1cm